Sealing-machine.



w. E. MILLER. SEALING MACHINE. APPLICATION F ILED JULY 11' l9l8.

Patentd Apr. 8,1919.

3 SHEETS-SHEET l.

W. E. MILLER.

SEALING MACHINE. APBQJCATION man JULY 11. 1913.

1,299,499. I Patented Apr. 8,1919.

. 3 'SHEETS-SHEET 2.

William E. miller W. E. MILLER.

SEALING MACHINE. APPLICATIOYN FILED JULY H, lsl.

1,299,99. Patented Apr. 8,1919.

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SEALING-MACHINE.

Specification of Letters Patent.

Application filed July 11, 1918. Serial No. 244,349.

To all/whom it may concern: 7

Be it known that I, WILLIAM E. MILLER, a citizen of the United States, residing at Gobleville, county of Van Buren, State of Michigan, have invented certain new and useful Improvements in Sealing-Machines, of which the following is a specification.

This invention relates to improvements in sealing machines.

My improved sealing machine is espec1ally designed by me for sealing the waxed paper wrapping of sandwiches and the like, although desirable for use in other relations.

The main objects of this invention are:

First, to provide a machine for sealing waxed wrappers upon sandwiches and like articles of more or less delicate nature.

Second, to provide in a sealing machine an improved wrapping means.

Third, to provide an improved sealing ma chine adapted for sealing the waxed paper wrapping of sandwiches and like articles, which is effective for the purpose, simple and convenient to use, and compact in structure.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification. The invention 1s clearly defined and pointed out in the claims.

- my improved machine in front A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawings, forming a part of this specification, in which:

Figure I is a plan view of my improved sealing machine, a portion of the front end being broken away.

Fig. I is a plan view of the portion of of line a r-a of Fig. I.

Fig. II is a side elevation of the parts shown in Fig. I.

Fig. III is an inverted view thereof.

Fig. IV is a detail longitudinal section on a line corresponding to line 4-4 of Figs. I and III.

Fig. V is a tran verse section on a line corresponding to line 5-5 of Figs. I and III. Fig. VI is a detail transverse section through the heating plate and heating unit. Fig. VII is a longitudinal section through the heating unit on a line corresponding to line 7-7 of Fig. VI.

Fig. VIII is a vertical transverse section through the wrapping means on a line correspondmg to line 8-8 of Fig. IX.

Patented. Apr. 8, 1919.

Fig. IX is a side elevation of the front I end of the machine, the rear end being broken away, one of the steps of wrapping an article being illustrated.

Fig. X is a detail side elevation showing another step of the wrapping.

Fig. XI is a detail side elevation-showing the article completely wrapped and passing to the heating plate. Y

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, my improved sealing machine, as embodied, comprises the transverse base members 1 formed of bars yoke-shaped to provide legs 2 terminating in feet 3 having holes 4 therein adapted to receive screws so that the machine may be attached to a table or other support if de sired.

Longitudinal base bars .5 are secured to the transverse base members by means of bolts 6. Uprights 7 having inwardly projecting arms 8 at their upper ends and inwardly projecting arms 9 at their lower ends are mounted on the cross bars in opposed pairs, the lower arms 9 being arranged on the bars below the longitudinal bars 0 and secured by the bolts 6.

The heating plate 10 is formed 0f an inverted channel and is disposed between the the uprights and held yieldingly inward by the coiled springs 17 arranged on the rods.

Cotters 18 arranged through holes 19 in the rods, there being a plurality of holes to provide for adjustment, limit the inward movement of the side bars. Top-bars 20 supported by rods 21 reciprocating through holes 22 in the arms 8 of the uprights prevent lateral movement of the rods. Bearings 23 are mounted upon the arms. The

- ward movement of rods are provided with a series of holes 24 adapted to receive cotters 25 so that the inthe rods may be re ulated. The to bars are held yieldingly 1nward by coiled sprin s 26.

The heating unit, esignated-generally by the numeral 27, is adjustably mounted below the heating late and retained by means of the threaded posts 2'8. This .heating unit comprises a. pair of plates between which 18 the resistance wire 29 The horizontal portion of these bars is supin planes slightly outside of the planes of the outer edges bars 32, the outer corners ported in substantially the plane of the sealing wa formed in the structure illustrated by t e heating plate 10.. The front end of the sealing plate has a V-shaped recess with downwardly curved edges 34. .The rear end of the wrapping way lies within the V- shaped recess of the sealing way 10, as best.

and VIII. The rear ends of these way bars 32am supported by posts 35 carried by brackets 36 a'dJustably mounted by means of .the screw 37 engaging slots 38 in the brackets, the screw being carried on the plate 39. This the longitudinal bars 5.

A pair of brackets 40' carrying posts, (not illustrated) similar to the posts 35, are

shown in Figs. I

-mounted on the front end of the plate 39',

being adjustably mounted .by means -of a screw 37, as described. Th front ends of the'way bars 32 are supported by the bars 4% mounted on the brackets and extend forwardly therefrom as shown in Fig. IX. The brackets 36 and 40 have overhanging arms 36" and 40 with laterally turned ends 42 to which the folders 43 are secured. The folders are supported in a rearwardly inclined relation and have inwardly curved rear ends 44 disposed below and. at. the rear of the way curved to correspond to the curved ends of the folders The front brackets 40 are higher than the rear brackets 36 so that the ont ends of the folders 43 are well above the wrapping way. The folders 43 are positioned so that the main portions thereof lie vertical of the wrapping way so' that when an article with a wrapper wrapped partially around the same is pushed along the way the projecting ends of the wrapper are engaged by the folders 43 and the folding completed as the article is pushed onto the sealing way. i I

with proper insula- ,As the article is found to be very efficient. advantageous for use without the folding plate 39 is carried by 45 of which are having its'arms secured thereto,

. posed on per over the front edge of the article as shown in Fig. IX, and the article is pushed along the wrappingways bringing the ends of the wrapper into engagement with the folders 43 which carry it down across the ends of the wrapper and folds its 'edges under the same as the article passes over the curved ends 44 and onto the sealing plate 10.

plate the wax of the different folds is fused sufficiently to unite the folds and as the article is passed onto the cooling plate 13 from the heating plate the until the wax has set.

The machine is of large capacity and may be easily operated. It is especially designed by me for sealing the wrappers of sandwiches and the like for which purpose it is Themachine is mechanism, the articles being completely wrapped before being fed into the machine. The wrapping mechanism, however, is of decided advantage as the articles may be wrapped and sealed with great rapidity.

I have illustrated and described my improvements as I have embodied or adapted the same for attempted to illustrate other embodiments or adaptations as I believe the disclosure.

made will enable those skilled in the art to which my invention relates to embody or. adapt the same as may be desired.

Having thus described my inventlon, what I claim'as new and desire tosecure by Letters Patent, is: r

1. A sealing machine comprising spaced transverse base members, a pair of longiuprights having inwardly tudinal base bars, projecting arms at their upper and lower ends disposed in opposed coacting pairs with their lower arms upon said transverse base members, said lo'ngitudinal'ba'rs being disposed upon s'uch arms. the superimposed parts being secured together by oltstherethrough, an inverted channel-shaped heating plate disposed between said uprights and a heating element mounted on said longitudinal bars below said heating plate, a cooling plate dissaid longitudinal bars at the rear of said heating plate, the surfaces of said heating and cooling plates being in the same plane, yielding sidebars supported by rods slidably arranged through said uprights and having springs thereon, said rods being pro vided with pins limiting their inward movepushed over the heating sealing sandwiches. I have not a swingwrapping is held ment, and yielding top bars supported on the upper arms of said uprights b rods reciprocating through said arms and aving springs thereon, said rods being provided with pins limiting their inward movement.

2. A sealing machine comprising spaced transverse base members, a pair of longitudinal base bars, uprights having inwar ly projecting arms at their upper and lower ends disposed in opposed coacting pairs with their lower arms upon said transverse base members, said longitudinal bars being disposed upon such arms, the superimposed parts being secured together by bolts therethrough, an inverted channel-shaped heating plate disposed between said uprights and having its arms secured thereto, a heating element mounted on said longitudinal bars below said heating plate, a 3 cooling plate disposed on said longitudinal bars at the rear of said heating plate, the surfaces of said heating and cooling plates being in the same plane, and side and top bars yieldingly mounted on said uprights and their upper arm, respectively.

3. In a sealing machine, the combination of spaced transverse base members, longitudinal base bars secured thereto, uprights having inwardly projecting arms at their upper ends mounted on said base in opposed coacting pairs, a heating plate disposed between said uprights, a heating element mounted below said heating plate, a cooling plate disposed at the rear of said heating plate, the surface of said heating and cooling plates being in the same plane,-yielding side bars supported by rods slidably arranged through said-uprights and having springs thereon. said rods being provided,

with adjustable means limiting their inward movement, and yielding top. bars supported on the upper arms of said uprights by rods reciprocating through said arms and having springs thereon, said rods being provided with adjustable means limiting their inward movement.

4. In a sealing machine, the combination of a sealing way having at its front end a if-shaped recess with downwardly curved edges, yielding side and top bars supported in coacting relation to said .sealing way, a wrapping way consisting of a pair of bars having downwardly inclined front ends disposed with their rear ends adjacent to but spaced from the front end of said sealing way, adjustable brackets on which said waybars are mounted, said brackets having overhanging arms at the sides of the wrapper way, and bar-like folders having inwardly curved rear ends mounted on said overhanging arms of said brackets in a rearwardly inclined position and so that their curved rear ends lie below the plane of the wrapping way bars and in proximity to the sealing way so that the projecting ends of a wraper folded over an article are engaged and folded by the folders as the article is pushed along the wrapping way and onto the seal ing way. i

5. In a sealing machine, the combination of a sealing way having at its front end a curved rear ends mounted on said overhanging arms of said brackets in a rearwardly inclined position and so that their curved rear ends lie below the plane of the wrapping way bars and in proximity to the sealing way so that the projecting ends of a wrapper folded over an article are engaged and folded by the folders as the article is pushed along the wrapping way and onto the sealing way.

6. In a sealing machine, the combination of a sealing way having at its front end a V-shaped recess with downwardly curved edges, a wrapping way disposed with its rear end adjacent to but spaced from the front end of said sealing way, and rearwardly inclined folders having inwardly rearwardly inclined folders having inwardly curved portions lying below the plane of the wrapping way and in proximity to the sealing way so that the projecting ends of a wrapper folded over an article are engaged and folded by the folders as the article is pushed along the wrapping way and onto the sealing way.

8. The combination of a plate having at its front end a V-shaped recess with downwardly curved edges, a wrapping way consisting of a pair of bars disposed with their rear ends adjacent to but spaced from the front end of said plate, brackets having overhanging arms at the sides of the wrapper ways on which said way bars are mounted, and bar-like folders having inwardly curved rear ends mounted on said overhanging arms in a rearwardly inclined position with their curved rear ends below the rear end of the wrapping way and in proximity to said plate so that the projecting ends of a &

wrap er folded over an article are engaged and olded by the folders as the artlcle is "wrapper ways on which said way barsare III-v; wardly curved rear. ends mounted on said' mounted, and bar-like folders having overhanging arms in a rear'wardly inclined position with their curved rear ends below the rear end of the wrapping way so that the projectin over an artic the folders as the article is pushed along the wra ping way. 1

10. T e combination of a plate having a downwardly curved front edge, a wrapping wag disposed with its rear end adjacent to ut spaced from the front end of said plate, and rearwardly inclined folders ends of a wrapper folded e are engaged and folded by,

having inwardly'curved portions lyin below the plane of the wrapping way and in proximity to said plate so that, the project- 1ng ends of a wra per folded over an article are engaged and olded by the folders as the article is pushed along the wrapping way and onto the plate.

11. vThe combination of a way, and rear- 3 wardly inclined folders having inwardly curved portions lying below the plane of the way so that the projecting ends of a wrapper folded over an article are engaged and folded by the folders as the article is 3 pushed along the way. In witness whereof I have hereunto set my hand and seal in the presence of two witnesses,

LIAM n MiLLER. a a

'l Witnesses:

FRANK SACKETI,

GRETA PownRs. 

